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Genetic analysis for brix weight per stool and its component traits in sugarcane (Saccharum officinarum)

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2007年第12期8卷 860-866页

作者： LIU Gui-fu ZHOU Hong-kai HU Han zhu Zi-hong HAYAT Yousaf XU Hai-ming YANG Jian College of Agriculture South China Agricultural University Guangzhou 510642 China College of Agriculture Guangdong Ocean University Zhanjiang 524088 China Institute of Statistical Genetics and Bioinformatics College of Agriculture and Biotechnology Zhejiang University Hangzhou 310029 China

Brix weight per stool (BW) of sugarcane is a complex trait, which is the final product of a combination of many components. Diallel cross experiments were conducted during a period of two years for BW and its five component traits, in- cluding stalk diameter (SD), stalk length (SL), stalk number (SN), stalk weight (SW), and brix scale (BS) of sugarcane. Phenotypic data of all the six traits were analyzed by mixed linear model and their phenotype variances were portioned into additive (A), dominance (D), additive×environment interaction (AE) and dominance×environment interaction (DE) effects, and the correlations of A, D, AE and DE effects between BW and its components were estimated. Conditional analysis was employed to investigate the contribution of the components traits to the variances of A, D, AE and DE effects of BW. It was observed that the heritabilities of BW were significantly attributed to A, D and DE by 23.9%, 30.9% and 28.5%, respectively. The variance of A effect for BW was significantly affected by SL, SN and BS by 25.3%, 93.7% and 17.4%, respectively. The variances of D and DE effects for BW were also significantly influenced by all the five components by 5.1%～85.5%. These determinants might be helpful in sugarcane breeding and provide valuable information for multiple-trait improvement of BW.

关键词： Genetic analysis Brix weight (BW) Component traits Sugarcane (Saccharum officinarum)

基于LJ势与随机过程的纳米级粗糙表面摩擦力计算模型

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华南理工大学学报（自然科学版） 2016年第7期44卷 55-60,69页

作者：祝胜光黄平华南理工大学机械与汽车工程学院广东广州510640

基于接触界面势垒与摩擦接触面形貌的随机特性,建立了一种新的纳米级粗糙表面滑动摩擦力计算模型;利用该模型对满足严格平稳的同种摩擦副材料纳米级随机粗糙表面的摩擦力进行了数值计算.结果表明:经该模型数值计算得出的平均滑动摩擦力... 详细信息

基于接触界面势垒与摩擦接触面形貌的随机特性,建立了一种新的纳米级粗糙表面滑动摩擦力计算模型;利用该模型对满足严格平稳的同种摩擦副材料纳米级随机粗糙表面的摩擦力进行了数值计算.结果表明:经该模型数值计算得出的平均滑动摩擦力与法向载荷呈线性关系;法向载荷与平均接触界面间隙呈指数关系;在相同界面间隙下,平均法向力与粗糙峰高度分布标准差呈线性关系.计算结果与现有的研究结论相符,证明该模型是有效的、可行的;基于该模型,可根据接触界面的形貌分布参数、材料参数与法向载荷预测出平均滑动摩擦力.

关键词： LJ势随机过程随机粗糙表面滑动摩擦力界面间隙

Performance of a c-and a-Cut Ho:YAP Laser at Room Temperature

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Chinese Physics Letters 2012年第3期29卷 114-116页

作者： SHEN Ying-Jie YAO Bao-Quan DAI Tong-Yu LI-Gang DUAN Xiao-ming JU You-Lun WANG Yue-zhu National Key Laboratory of Tunable Laser Technology Harbin Institute of TechnologyHarbin 150001

Continuous-wave operation of room-temperature c-and a-cut Ho:YAP lasers resonantly end-pumped by a diodepumped Tm:YLF laser at 1.91μm are comparatively *** maximum output powers of 7.8 W at 2103nm and 6.09 W at 2130 nm for c-cut Ho:YAP crystal are *** maximum output power of 8.78 W at 2119nm for a-cut Ho:YAlO_(3)crystal is *** maximum slope efficiency in terms of absorbed pump power approximately reaches 57.8%for c-oriented crystal and about 52.7%for a-oriented crystal.

关键词： Tm:YLF pumped pump

Long-read genome assemblies reveal a cis-regulatory landscape associated with phenotypic divergence in two sister Siniperca fish species

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Zoological Research 2023年第2期44卷 287-302页

作者： guang-Xian Tu Xin-Shuang Zhang Rui-Run Jiang Long Zhang Cheng-Jun Lai zhu-Yue Yan Yan-Rong Lv Shao-Ping Weng Li Zhang Jian-Guo He Muhua Wang State Key Laboratory for Biocontrol School of Marine SciencesSun Yat-sen UniversityZhuhaiGuangdong 519000China China-ASEAN Belt and Road Joint Laboratory on Mariculture Technology Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai)ZhuhaiGuangdong 519000China Chinese Institute for Brain Research Beijing 102206China guangdong Province Key Laboratory for Aquatic Economic Animals School of Life SciencesSun Yat-sen UniversityGuangzhouGuangdong 510275China

Due to the difficulty in accurately identifying structural variants(SVs) across genomes,their impact on cisregulato ry diverge n ce of closely related species,especially fish,remains to be *** identified broad H3K4me3 domains are essential for the regulation of genes involved in several biological ***,the role of broad H3K4me3 domains in phenotypic divergence remains poorly *** chuatsi and *** are closely related but divergent in several phenotypic traits,making them an ideal model to study cis-regulatory evolution in sister ***,we generated chromosome-level genomes of *** and ***,with assembled genome sizes of 716.35 and740.54 Mb,*** evolutionary histories of *** and *** were studied by inferring dynamic changes in ancestral population *** explore the genetic basis of adaptation in *** and ***,we performed gene family expansion and contraction analysis and identified positively selected genes(PSGs).To investigate the role of SVs in cis-regulatory divergence of closely related fish species,we identified high-quality SVs as well as divergent H3K27ac and H3K4me3 domains in the genomes of *** and *** analysis revealed that cis-regulatory divergence caused by SVs played an essential role in phenotypic divergence between *** and ***,divergent broad H3K4me3 domains were mostly associated with cancer-related genes in *** and *** and contributed to their phenotypic divergence.

关键词： cis-regulatory divergence Structural variants H3K27ac Broad H3K4me3 Siniperca chuatsi Siniperca scherzeri

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硅微陀螺仪的建模

西安电子科技大学学报 2007年第2期34卷 227-232页

作者：单光宝杨银堂刘佑宝朱樟明西安微电子技术研究所陕西西安710054 西安电子科技大学微电子研究所陕西西安710071

提出了硅微陀螺仪的集总建模方法.该方法将硅微陀螺仪划分为多个相互关联的基本单元,各基本单元的行为特征被集总到单元的节点端口上,并表征为矩阵形式.将根据物体相对运动理论,从基本单元的解析方程出发,给出了建立硅微陀螺仪基本单元... 详细信息

提出了硅微陀螺仪的集总建模方法.该方法将硅微陀螺仪划分为多个相互关联的基本单元,各基本单元的行为特征被集总到单元的节点端口上,并表征为矩阵形式.将根据物体相对运动理论,从基本单元的解析方程出发,给出了建立硅微陀螺仪基本单元模型的一般方法,并以Verilog-A为模型编码语言实现了硅微陀螺仪参数化的基本单元模型.在Cadence Spectre上进行了仿真验证,频域仿真结果与ANSYS计算结果相差在1%以内;时域仿真结果表明利用该系统级模型能够快速进行复杂机电一体仿真.

关键词：微电子机械系统集总建模微电子机械系统系统仿真硅微陀螺仪

胎儿宫内人巨细胞病毒感染的产前诊断及宫内感染胎儿妊娠结局

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广东医学 2024年第8期45卷 1048-1052页

作者：罗茗月林海英沈楷严泽浩麦光兴蓝慧娟熊礼宽暨南大学附属深圳市宝安区妇幼保健院中心实验室广东深圳518100 暨南大学附属深圳市宝安区妇幼保健院产前诊断科广东深圳518100

目的探讨2016-2021年深圳市宝安区妇幼保健院人巨细胞病毒(HCMV)胎儿宫内感染率,以及宫内感染胎儿的超声表现和妊娠结局。方法对4685例行羊水穿刺孕妇的羊水标本进行HCMVDNA检测,并回顾性分析部分病例的HCMV-IgG和IgM检测结果,对11例DN... 详细信息

目的探讨2016-2021年深圳市宝安区妇幼保健院人巨细胞病毒(HCMV)胎儿宫内感染率,以及宫内感染胎儿的超声表现和妊娠结局。方法对4685例行羊水穿刺孕妇的羊水标本进行HCMVDNA检测,并回顾性分析部分病例的HCMV-IgG和IgM检测结果,对11例DNA阳性病例进行染色体核型分析、超声检查并追踪妊娠结局。结果4685例羊水标本中4674例HCMV-DNA阴性,其中2076例孕妇中26例血清HCMVIgM阳性,1482例中IgG阳性1454例。11例孕妇羊水HCMV-DNA阳性,对11例孕妇进行血清HCMV-IgM、IgG和DNA检测,并对尿液进行HCMV-DNA检测,其中HCMV-IgM阳性3例,阴性8例;HCMV-IgG阳性8例,未检测3例;孕妇尿液HCMV-DNA阳性2例,阴性7例,未检测2例;血清HCMV-DNA阴性9例,未检测2例。11例HCMV宫内感染的孕妇中,有2例穿刺前HCMV-IgM阳性,9例穿刺原因为胎儿超声异常或唐氏筛查高风险;7例超声检查结果有HCMV感染相关表现,其中6例引产,1例出生后未发现异常,4例超声未提示感染相关表现,正常分娩后未发现异常。结论羊水HCMV-DNA检测可准确诊断先天性CMV感染,孕妇血清Ig和DNA检测对诊断参考价值不大。胎儿宫内HCMV感染后,部分会出现超声异常,但部分感染胎儿出生后未致病。

关键词：人巨细胞病毒宫内感染妊娠结局

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ixed Cadzow filtering method in fractional Fourier domain

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Applied Geophysics 2018年第2期15卷 271-279,363,364页

作者： Cao Zhong-Lin Cao Jun-Xing Wu Fu-Rong He guang-ming Zhou Qiang Wu Yu-Lin Chengdu University of Technology Chengdu Sichuan 610059 China Research and Development Center BGP Inc. CNPC Zhuozhou Hebei 072750 China Mountain Geophysical Technology Test Center CNPC Chengdu Sichuan 610213 China

Conventional frequency domain method used in random noise attenuation singular value decomposition （SVD） filtering processing causes bending event damage. To mitigate this problem, we present a mixed Cadzow filtering method based on fractional Fourier transform to suppress random noise in 3D seismic data. First, the seismic data is transformed to the time-frequency plane via the fractional Fourier transform. Second, based on the Eigenimage filtering method and Cadzow filtering method, the mixed high-dimensional Hankel matrix is built; then, SVD is performed. Finally, random noise is eliminated effectively by reducing the rank of the matrix. The theoretical model and real applications of the mixed filtering method in a region of Sichuan show that our method can not only suppress noise effectively but also preserve the frequency and phase of effective signals quite well and significantly improve the signal-to-noise ratio of 3D post-stack seismic data.

关键词： 3D random noise Cadzow filtering method fractional Fourier transforms

Interactive effect of climate warming and nitrogen deposition may shift the dynamics of native and invasive species

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Journal of Plant Ecology 2021年第1期14卷 84-95页

作者： guang-Qian Ren Chris B.Zou Ling-Yun Wan Jacob H.Johnson Jian Li Lan zhu Shan-Shan Qi Zhi-Cong Dai Hai-Yan Zhang Dao-Lin Du Institute of Environment and Ecology Academy of Environmental Health and Ecological SecuritySchool of the Environment and Safety EngineeringJiangsu UniversityZhenjiang 212013China Institute of Agricultural Engineering Jiangsu UniversityZhenjiang 212013China Department of Natural Resource Ecology and Management Oklahoma State UniversityStillwater 74078USA guangxi Botanical Garden of Medicinal Plants Nanning 530023China Department of Statistics Oklahoma State UniversityStillwater 74078USA Changzhou Environmental Monitoring Center Changzhou 213000China

Aims Projections of invasive species expansion under a warmer world often do not explicitly consider the concurring nitrogen(N)*** remains largely unknown how the convoluted effect of climate warming and N deposition will shift the native and invasive species ***,we hypothesize that the concurring in creases in N and temperature would promote growth of invasive species greater than that of native *** A controlled greenhouse experiment was conducted to quantify the growth response of an invasive species(Solidago canadensis L.)and a co-existing native species(Artemisia argyi Levi,et Van)under the effects of climate warming,N deposition and their *** Findings Due to the strong positive effect of N addition,the interactive effect of temperature increase and N addition resulted in an overall significant increase in growth of both in vasive and native species,demonstrating that these manipulations may make microhabitats more favorable to plant ***,the relative increases in biomass,height and diameter of invasive *** were signifiesntly lower than those of native *** suggests that the vegetative growth superiority of invasive *** over the native species *** is reduced by the enhanced N availability in the warmer ***,the inclusion of N deposition may mitigate the projection of invasive species *** expansion under climate warming.

关键词： biological invasion climate warming N deposition relative change Solidago canadensis

Research on Transfer Learning of Vision-based Gesture Recognition

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International Journal of Automation and computing 2021年第3期18卷 422-431页

作者： Bi-Xiao Wu Chen-guang Yang Jun-Pei Zhong College of Automation Science and Engineering South China University of TechnologyGuangzhou 510640China Shien-ming Wu School of Intelligent Engineering South China University of TechnologyGuangzhou 511442China Foshan Newthinking Intelligent Technology Company Ltd. Foshan 528231China

Gesture recognition has been widely used for human-robot *** present,a problem in gesture recognition is that the researchers did not use the learned knowledge in existing domains to discover and recognize gestures in new *** each new domain,it is required to collect and annotate a large amount of data,and the training of the algorithm does not benefit from prior knowledge,leading to redundant calculation workload and excessive time *** address this problem,the paper proposes a method that could transfer gesture data in different *** use a red-green-blue(RGB)Camera to collect images of the gestures,and use Leap Motion to collect the coordinates of 21 joint points of the human ***,we extract a set of novel feature descriptors from two different distributions of data for the study of transfer *** paper compares the effects of three classification algorithms,i.e.,support vector machine(SVM),broad learning system(BLS)and deep learning(DL).We also compare learning performances with and without using the joint distribution adaptation(JDA)*** experimental results show that the proposed method could effectively solve the transfer problem between RGB Camera and Leap *** addition,we found that when using DL to classify the data,excessive training on the source domain may reduce the accuracy of recognition in the target domain.

关键词： Transfer learning gesture recognition red-green-blue(RGB)Camera Leap Motion joint distribution adaptation(JDA)